<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        div{
            background-color: gainsboro;
        }
        ul{
            display: flex;
        }
        li{
            width: 50px;
            background-color: #fff;
            list-style: none;
            margin-left: 20px;
            display: flex;
            justify-content: space-around;
            align-items: center;
        }
    </style>
</head>
<body>
    <div>
        <ul>
            <li>上一页</li>
            <li>1</li>
            <li>2</li>
            <li>3</li>
            <li>4</li>
            <li>5</li>
            <li>6</li>
            <li>7</li>
            <li>8</li>
            <li>9</li>
            <li>10</li>
            <li>...83</li>
            <li>下一页</li>
        </ul>
    </div>
</body>
</html>